Hello Guys and thanks for the suggestions,

Giving the matter further experimentation, these crackles seem to be song file specific in BIAB, I do make a lot of changes in key - maybe 20 times a day or so for the same song. I think this is the culprit.

At present I am running with Audio device set to 512 and I am still getting crackles. These increase at lower settings.

I have had problems with files the more I tweak them. At one time 2015 I had a song change key - so a C key played as F#, the whokle song transposed (but not by any song setting). Nothing I could do would reset it, but once I dumped the file and went to new material the problem vanished. This seems also to be song file specific.

Everything is set up correctly in the DAW, no other application is effected.

I can live with it, there are workarounds. These songs are not really finished material, they are for chops, that's all.

Z

Win 11 64, Asus Rog Strix z390 mobo, 64 gig RAM, 8700k